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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-3
|
pubmed:dateCreated |
1998-11-30
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pubmed:abstractText |
Nanospheres synthesized by salt-induced complex coacervation of cDNA and polycations such as gelatin and chitosan were evaluated as gene delivery vehicles. DNA-nanospheres in the size range of 200-750 nm could transfect a variety of cell lines. Although the transfection efficiency of the nanospheres was typically lower than that of lipofectamine and calcium phosphate controls in cell culture, the beta-gal expression in muscle of BALB/c mice was higher and more sustained than that achieved by naked DNA and lipofectamine complexes. This gene delivery system has several attractive features: (1) ligands can be conjugated to the nanosphere for targeting or stimulating receptor-mediated endocytosis; (2) lysosomolytic agents can be incorporated to reduce degradation of the DNA in the endosomal and lysosomal compartments; (3) other bioactive agents or multiple plasmids can be co-encapsulated; (4) bioavailability of the DNA can be improved because of protection from serum nuclease degradation by the polymeric matrix; (5) the nanosphere can be lyophilized for storage without loss of bioactivity.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Apr
|
pubmed:issn |
0168-3659
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
30
|
pubmed:volume |
53
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
183-93
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:9741926-Animals,
pubmed-meshheading:9741926-Biological Availability,
pubmed-meshheading:9741926-Cell Line,
pubmed-meshheading:9741926-DNA,
pubmed-meshheading:9741926-Genetic Vectors,
pubmed-meshheading:9741926-Humans,
pubmed-meshheading:9741926-Mice,
pubmed-meshheading:9741926-Mice, Inbred BALB C,
pubmed-meshheading:9741926-Microspheres,
pubmed-meshheading:9741926-Particle Size,
pubmed-meshheading:9741926-Polyamines,
pubmed-meshheading:9741926-Transfection
|
pubmed:year |
1998
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pubmed:articleTitle |
DNA-polycation nanospheres as non-viral gene delivery vehicles.
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pubmed:affiliation |
Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA. kleong@bme.jhu.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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